diff --git a/src/applications/maniphest/query/ManiphestTaskSearchEngine.php b/src/applications/maniphest/query/ManiphestTaskSearchEngine.php
--- a/src/applications/maniphest/query/ManiphestTaskSearchEngine.php
+++ b/src/applications/maniphest/query/ManiphestTaskSearchEngine.php
@@ -141,7 +141,7 @@
         ->setKey('closerPHIDs')
         ->setAliases(array('closer', 'closerPHID', 'closers'))
         ->setDescription(pht('Search for tasks closed by certain users.')),
-      id(new PhabricatorSearchTextField())
+      id(new PhabricatorSearchIntField())
         ->setLabel(pht('Page Size'))
         ->setKey('limit'),
     );